Not saying they couldn't, but that would mean throwing everything they think they know away and starting from scratch which can be very hard.
Yes, because my way of thinking I had to create as much as the games I made. There was no instructions. Kingdom Hearts introduced me to State Mechanics. And that stuck, but a lot of the understanding of thing is just as made up as the code written with my way of thinking. Blame the "figure it out" message of 3dgs.